upstream: Disable SSH2_MSG_DEBUG messages for Twisted Conch clients

without version numbers since they choke on them under some circumstances.
https://twistedmatrix.com/trac/ticket/9422 via Colin Watson

Newer Conch versions have a version number in their ident string and
handle debug messages okay. https://twistedmatrix.com/trac/ticket/9424

OpenBSD-Commit-ID: 6cf7be262af0419c58ddae11324d9c0dc1577539
diff --git a/compat.c b/compat.c
index 861e9e2..1c0e087 100644
--- a/compat.c
+++ b/compat.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: compat.c,v 1.106 2018/02/16 04:43:11 dtucker Exp $ */
+/* $OpenBSD: compat.c,v 1.107 2018/04/16 22:50:44 djm Exp $ */
 /*
  * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl.  All rights reserved.
  *
@@ -128,6 +128,8 @@
 					SSH_OLD_DHGEX },
 		{ "ConfD-*",
 					SSH_BUG_UTF8TTYMODE },
+		{ "Twisted_*",		0 },
+		{ "Twisted*",		SSH_BUG_DEBUG },
 		{ NULL,			0 }
 	};